Nuclear island cold chain valve opening degree control method and device, server and storage medium

Abstract

This application relates to the field of computer technology and provides a method, device, server, and storage medium for controlling the opening degree of valves in the nuclear island cold chain. The method includes: acquiring the expected heat exchange capacity of each heat exchanger in a heat exchange system, wherein the heat exchange system includes multiple heat exchangers; determining the expected flow rate of the system input pipe based on the expected heat exchange capacity of each heat exchanger; determining the opening degree information of the pipe valves in the system input pipe based on the expected flow rate; and controlling the opening degree of the pipe valves in the system input pipe based on the opening degree information. In this application, by adjusting the opening degree of the pipe valves, the flow rate in the pipe is regulated, thereby rationally utilizing the cold source in the heat exchange system and improving the economic efficiency of the nuclear power plant.

Description

Technical Field

[0001] This application belongs to the field of computer technology, and in particular relates to a method, device, server and storage medium for controlling the opening degree of a cold chain valve in a nuclear island. Background Technology

[0002] A heat exchange system typically uses a cooling medium, such as air or water, to exchange heat with the equipment being cooled, ensuring that the temperature of the equipment remains within a preset temperature range. In nuclear power plants, the primary function of a heat exchange system is to exchange heat with the equipment in the plant's operating systems, such as the reactor refueling pool and spent fuel pool cooling and treatment systems, boron recovery systems, and chemical and volume control systems. This process removes waste heat from the operating systems and the equipment within them, thus ensuring that the operating systems operate within a preset temperature range.

[0003] In related technologies, the flow rate in the heat exchange system pipelines of nuclear power plants is usually fixed. When the operating conditions of the nuclear power plant, the initial temperature of the cooling water, and the cooling demand of the working system itself change, it is often impossible to properly adjust the flow rate in the pipelines, resulting in unreasonable utilization of the cold source of the heat exchange system of the nuclear power plant and reducing the economic benefits of the nuclear power plant. Summary of the Invention

[0004] This application provides a method, device, server, and storage medium for controlling the opening degree of valves in the nuclear island cold chain. It can solve the problem in related technologies where the flow rate in the heat exchange system pipelines of nuclear power plants is usually fixed. When the operating conditions of the nuclear power plant, the initial temperature of the cooling water, and the cooling demand of the working system itself change, it is often impossible to properly adjust the flow rate in the pipelines, resulting in unreasonable utilization of the cold source in the heat exchange system of the nuclear power plant and reducing the economic benefits of the nuclear power plant.

[0005] The first aspect of this application provides a method for controlling the opening degree of a nuclear island cold chain valve, including:

[0006] Obtain the expected heat transfer of each heat exchanger in the heat exchange system, wherein the heat exchange system includes multiple heat exchangers;

[0007] Based on the expected heat exchange capacity of each heat exchanger, determine the expected flow rate of the system input pipe of the heat exchange system;

[0008] Based on the expected flow rate of the system input pipeline, determine the opening information of the pipeline valves in the system input pipeline, and based on the opening information of the pipeline valves in the system input pipeline, control the opening of the pipeline valves in the system input pipeline.

[0009] Furthermore, the desired heat transfer capacity of each heat exchanger in the heat exchange system is obtained, including:

[0010] For each heat exchanger, real-time temperature and flow information of the corresponding heat exchanger to be cooled are collected. Based on the real-time temperature and flow information, the expected heat exchange capacity of the corresponding heat exchanger is determined. The real-time temperature information includes the heat exchange input temperature and heat exchange output temperature of the corresponding heat exchanger to be cooled. The real-time flow information includes the heat exchange input flow rate and heat exchange output flow rate of the corresponding heat exchanger to be cooled.

[0011] Furthermore, based on the expected heat exchange capacity of each heat exchanger, the expected flow rate of the system input pipe of the heat exchange system is determined, including:

[0012] The sum of the expected heat transfer values ​​of each heat exchanger is determined as the total expected heat transfer value of the heat exchange system.

[0013] Based on the pre-stored correspondence between heat exchange and flow rate, determine the flow rate corresponding to the total expected heat exchange, and use the determined flow rate as the expected flow rate of the system input pipeline.

[0014] Furthermore, the method also includes:

[0015] Collect the actual pressure of each preset pipe node on the system input pipeline in the heat exchange system;

[0016] Based on the pressure constraints corresponding to each preset pipeline node, the pressure output information of the target water pump is determined, wherein the target water pump is used to supply water to the heat exchange system.

[0017] Based on the pressure output information, control the output pressure of the target water pump.

[0018] Furthermore, the method also includes:

[0019] The desired flow rate is input into a pre-set flow distribution model to obtain the flow rate of the equipment input pipe of each heat exchanger, which is recorded as the equipment flow rate. Based on the equipment flow rate of each heat exchanger, the equipment temperature of each equipment to be cooled is determined.

[0020] The equipment temperature of each device to be cooled is input into a preset loss function. If the calculation result of the preset loss function meets the preset convergence condition, then for each heat exchanger, the opening information of the pipe valve of the corresponding heat exchanger input pipe is determined according to the equipment flow rate of the corresponding heat exchanger, and the opening of the corresponding pipe valve of the corresponding heat exchanger is controlled according to the determined opening information.

[0021] Furthermore, the method also includes:

[0022] If the calculation result of the preset loss function does not meet the preset convergence condition, the following adjustment steps will be performed:

[0023] According to the preset adjustment rules, the flow rate of each heat exchanger is adjusted, and the adjusted temperature of the corresponding equipment to be cooled is determined based on the adjusted flow rate of each heat exchanger.

[0024] Input the adjusted equipment temperature of each heat exchanger into the preset loss function. If the calculation result of the preset loss function does not meet the preset convergence condition, continue to execute the adjustment steps.

[0025] If the calculation result of the preset loss function meets the preset convergence condition, then the adjusted equipment flow rate of each heat exchanger is determined as the equipment flow rate of the corresponding heat exchanger.

[0026] Furthermore, if there are multiple heat exchange systems, the expected flow rate of the system input pipe of the heat exchange system is determined based on the expected heat exchange capacity of each heat exchanger, including:

[0027] For each heat exchange system, determine the temperature influence coefficient between other heat exchange systems and the corresponding heat exchange system, and determine the expected flow rate of the system input pipeline of the corresponding heat exchange system based on the temperature influence coefficient and the expected heat exchange capacity of each heat exchange device in the corresponding heat exchange system.

[0028] A second aspect of this application provides a device for controlling valve opening, comprising:

[0029] The information acquisition unit is used to acquire the expected heat exchange capacity of each heat exchange device in the heat exchange system, wherein the heat exchange system includes multiple heat exchange devices.

[0030] The flow rate determination unit is used to determine the expected flow rate of the system input pipe of the heat exchange system based on the expected heat exchange capacity of each heat exchange device.

[0031] The opening control unit is used to determine the opening information of the valves in the system input pipeline based on the expected flow rate of the system input pipeline, and to control the opening of the valves in the system input pipeline based on the opening information of the valves in the system input pipeline.

[0032] A third aspect of this application provides a server, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the nuclear island cold chain valve opening control method provided in the first aspect.

[0033] A fourth aspect of this application provides a storage medium storing a computer program that, when executed by a processor, implements the steps of the nuclear island cold chain valve opening control method provided in the first aspect.

[0034] The nuclear island cold chain valve opening control method, apparatus, server, and storage medium provided in this application have the following beneficial effects: First, the expected heat exchange capacity of each heat exchanger in the heat exchange system is obtained, wherein the heat exchange system includes multiple heat exchangers. Then, based on the expected heat exchange capacity of each heat exchanger, the expected flow rate of the system input pipeline of the heat exchange system is determined. Finally, based on the expected flow rate of the system input pipeline, the opening information of the pipeline valves of the system input pipeline is determined, and based on the opening information of the pipeline valves of the system input pipeline, the opening of the pipeline valves of the system input pipeline is controlled. By automatically adjusting the opening of the pipeline valves, the flow rate in the pipeline can be automatically adjusted, which can make reasonable use of the cold source in the heat exchange system and help improve the economic efficiency of the nuclear power plant. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a flowchart illustrating the implementation of a nuclear island cold chain valve opening control method according to an embodiment of this application;

[0037] Figure 2 This is a schematic diagram showing the relationship between the heat exchange system and the working system provided in one embodiment of this application;

[0038] Figure 3 This is a flowchart illustrating the implementation of controlling the output pressure of a target water pump according to an embodiment of this application;

[0039] Figure 4 This is a flowchart illustrating the implementation of adjusting the flow rate of a heat exchange device according to an embodiment of this application;

[0040] Figure 5 This is a structural block diagram of a valve opening control device provided in one embodiment of this application;

[0041] Figure 6 This is a structural block diagram of a server provided in one embodiment of this application. Detailed Implementation

[0042] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0043] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0044] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0045] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0046] To illustrate the technical solution of this application, the following embodiments will be used for explanation.

[0047] Please see Figure 1 , Figure 1 A flowchart illustrating the implementation of a nuclear island cold chain valve opening control method according to an embodiment of this application is shown, including:

[0048] Step 101: Obtain the expected heat exchange capacity of each heat exchange device in the heat exchange system.

[0049] The heat exchange system includes multiple heat exchange devices; please refer to [link / reference]. Figure 2 , Figure 2This is a schematic diagram illustrating the relationship between the heat exchange system and the working system provided in one embodiment of this application. For example... Figure 2 As shown, the heat exchange system can use a water pump to deliver cooling water to heat exchanger 1 and heat exchanger 2, where it exchanges heat with the devices to be cooled in the corresponding working system. In practice, the number of heat exchangers can be the same as or different from the number of devices to be cooled. In practical applications, one heat exchanger can exchange heat with one or more devices to be cooled; that is, one heat exchanger can correspond to one or more devices to be cooled.

[0050] The expected heat exchange is usually the amount of heat that needs to be removed.

[0051] In this embodiment, the execution entity of the above-mentioned nuclear island cold chain valve opening control method is typically a control server. In practice, the control server is usually used to control the heat exchange system to exchange heat with the working system. It should be noted that the server can be hardware or software. When the server is hardware, it can be implemented as a distributed server cluster composed of multiple servers, or as a single server. When the server is software, it can be implemented as multiple software programs or software modules, or as a single software program or software module. No specific limitations are made here.

[0052] As an example, the aforementioned executing entity can use a temperature acquisition device, such as a temperature sensor, to acquire the actual temperature value of the heat exchanger corresponding to the equipment to be cooled, and use this actual temperature value to calculate the expected heat transfer capacity of the heat exchanger. As another example, the aforementioned executing entity can also directly acquire the expected heat transfer capacity of the heat exchanger using a heat transfer capacity detection device. This heat transfer capacity detection device can acquire the actual temperature value of the heat exchanger corresponding to the equipment to be cooled, and can use this actual temperature value to calculate and output the expected heat transfer capacity of the corresponding heat exchanger.

[0053] Step 102: Determine the expected flow rate of the system input pipeline of the heat exchange system based on the expected heat exchange capacity of each heat exchanger.

[0054] Here, for each heat exchange device in the heat exchange system, the aforementioned executing entity can determine the flow rate corresponding to that heat exchange device in various ways.

[0055] As an example, the aforementioned executing entity can use the expected heat exchange capacity of the heat exchange device to find the flow rate corresponding to the expected heat of the heat exchange device from a pre-established heat-flow correspondence table.

[0056] As another example, the aforementioned implementing entity can also use the expected heat exchange capacity of the heat exchanger to calculate the flow rate corresponding to the expected heat exchange capacity of the heat exchanger using the following formula:

[0057]

[0058] Where, q j Q is the flow rate corresponding to the expected heat of the j-th heat exchanger. j Let be the expected heat transfer capacity of the j-th heat exchanger, c be the specific heat capacity of water, ρ be the density of water, and ΔT be the value of water. j It is the temperature difference between the heat exchange input end and the heat exchange output end of the j-th heat exchange device.

[0059] After obtaining the flow rate corresponding to the expected heat exchange capacity of each heat exchanger, the aforementioned executing entity can use the sum of the flow rates corresponding to the expected heat exchange capacity of all heat exchangers in the heat exchange system as the expected flow rate of the system input pipe of the heat exchange system.

[0060] Step 103: Determine the opening information of the valves in the system input pipeline based on the expected flow rate of the system input pipeline, and control the opening of the valves in the system input pipeline based on the opening information of the valves in the system input pipeline.

[0061] Among them, the opening information usually indicates the opening degree of the corresponding valve. Different opening degrees correspond to different flow rates through the valve. The larger the opening degree, the larger the flow rate through the valve, and the smaller the opening degree, the smaller the flow rate through the valve.

[0062] Here, after obtaining the expected flow rate of the system input pipeline, the aforementioned execution entity can use the expected flow rate of the system input pipeline to look up the opening information corresponding to the expected flow rate from a pre-established flow rate-opening information correspondence table, and control the opening of the corresponding pipeline valve of the heat exchange equipment according to the determined opening information. The aforementioned image flow rate-opening information correspondence table can be a pre-established correspondence table of the execution entity that stores multiple correspondences between flow rate and opening information.

[0063] In practice, the aforementioned executing entity can also use the expected flow rate of the system input pipeline and calculate the corresponding opening degree through the flow characteristics of the valve. For example, for a valve with a percentage flow characteristic, the relationship between flow rate and opening degree is:

[0064]

[0065] Where, q j q is the expected flow rate of the j-th heat exchanger. max R is the valve's maximum flow rate, and R is the ratio of the valve's maximum controllable flow rate to its minimum flow rate. R = q max / q min L is the valve opening degree. max This is the maximum opening degree of the valve.

[0066] The nuclear island cold chain valve opening control method provided in this embodiment first obtains the expected heat exchange capacity of each heat exchanger in the heat exchange system, wherein the heat exchange system includes multiple heat exchangers. Then, based on the expected heat exchange capacity of each heat exchanger, the expected flow rate of the system input pipeline of the heat exchange system is determined. Finally, based on the expected flow rate of the system input pipeline, the opening information of the pipeline valves of the system input pipeline is determined, and based on the opening information of the pipeline valves of the system input pipeline, the opening of the pipeline valves of the system input pipeline is controlled. By automatically adjusting the opening of the pipeline valves, the flow rate in the pipeline can be automatically adjusted, which can rationally utilize the cold source in the heat exchange system and help improve the economic efficiency of the nuclear power plant.

[0067] In some optional implementations of this embodiment, obtaining the expected heat exchange capacity of each heat exchange device in the heat exchange system may include:

[0068] For each heat exchanger, real-time temperature and flow rate information of the corresponding equipment to be cooled are collected, and the expected heat exchange capacity of the corresponding heat exchanger is determined based on the real-time temperature and flow rate information.

[0069] The real-time temperature information includes the input and output temperatures of the heat exchanger for the corresponding heat exchanger, and the real-time flow information includes the input and output flow rates of the corresponding heat exchanger for the corresponding heat exchanger. In practice, when the cooling medium for the equipment to be cooled is water, the input end of the equipment is the water inlet, and the output end is the water outlet.

[0070] Here, for each heat exchange device, the aforementioned execution entity can use a temperature acquisition device, such as a thermometer, to measure in real time the temperature at the heat exchange input end and the temperature at the heat exchange output end of the corresponding heat exchange device to be cooled, thereby obtaining the real-time temperature information of the corresponding heat exchange device to be cooled. It can also use a flow acquisition device, such as a flow meter, to measure in real time the flow rate at the heat exchange input end and the flow rate at the heat exchange output end of the corresponding heat exchange device to be cooled, thereby obtaining the real-time flow rate information of the corresponding heat exchange device to be cooled.

[0071] In practice, since the flow rates at the heat exchange input and output ends of the equipment to be cooled are generally equal, the aforementioned executing entity, after collecting the real-time temperature and flow rate information of the corresponding heat exchange equipment, can calculate the temperature difference between the heat exchange input and output ends of the equipment to be cooled by subtracting the temperature at the heat exchange input and output ends. The desired heat transfer capacity of the corresponding equipment to be cooled can then be calculated using the following formula:

[0072]

[0073] in, c is the expected heat exchange capacity of the equipment to be cooled corresponding to the j-th heat exchanger. m It is the specific heat capacity of the cooling medium in the equipment to be cooled, ρ m It is the density of the cooling medium in the equipment to be cooled. It is the heat exchange input flow rate or heat exchange output flow rate of the equipment to be cooled corresponding to the j-th heat exchanger. It is the temperature difference between the heat exchange input end and the heat exchange output end of the device to be cooled corresponding to the j-th heat exchange device.

[0074] For each heat exchanger, the heat conservation constraint is satisfied, that is, the heat absorbed by the heat exchanger is the same as the heat dissipated by the corresponding equipment to be cooled. The aforementioned execution entity can use the expected heat exchange of the equipment to be cooled as the expected heat exchange of the corresponding heat exchanger.

[0075] In some optional implementations of this embodiment, determining the expected flow rate of the system input pipe of the heat exchange system based on the expected heat exchange capacity of each heat exchanger may include the following steps one to two:

[0076] Step 1: The sum of the expected heat exchange capacity of each heat exchanger is determined as the total expected heat exchange capacity of the heat exchange system.

[0077] Here, after obtaining the expected heat transfer of each heat exchanger in the heat exchange system, the aforementioned implementing entity uses the sum of the expected heat transfers of each heat exchanger as the total expected heat transfer of the heat exchange system, that is:

[0078]

[0079] Among them, Q z Q is the total expected heat transfer of the heat exchange system. j Let J be the expected heat exchange capacity of the j-th heat exchanger, and J be the number of heat exchangers in the heat exchange system.

[0080] Step 2: Based on the pre-stored correspondence between heat exchange and flow rate, determine the flow rate corresponding to the total expected heat exchange, and use the determined flow rate as the expected flow rate of the system input pipeline.

[0081] For heat exchange systems, different flow rates typically result in different amounts of heat exchanged during the heat exchange process. After obtaining the total expected heat exchange, the aforementioned executing entity can use this total expected heat exchange to look up the flow rate corresponding to it in a pre-established heat exchange-flow rate correspondence table, and use the determined flow rate as the expected flow rate of the system input pipeline. The aforementioned heat exchange-flow rate correspondence table can be a pre-established correspondence table by the executing entity that stores multiple correspondences between heat exchange rates and flow rates.

[0082] In practice, the aforementioned implementing entity can also use the total expected heat exchange to calculate the expected flow rate of the system input pipeline using the following formula:

[0083]

[0084] Where, q z Q is the expected flow rate of the system input pipe. z Here, T is the total expected heat, c is the specific heat capacity of water, ρ is the density of water, and T is the total expected heat. s It is the initial temperature of the water, T e It is the temperature of the water at the heat exchange output end of the heat exchange system.

[0085] Please see Figure 3 , Figure 3 A flowchart illustrating the implementation of controlling the output pressure of a target water pump according to an embodiment of this application is shown, including:

[0086] Step 301: Collect the actual pressure of each preset pipe node on the system input pipe in the heat exchange system.

[0087] Among these, preset pipe nodes are typically pre-defined pipe nodes. In practice, preset pipe nodes are usually the locations where pipes in a heat exchange system branch or merge.

[0088] In practice, the aforementioned actuators can employ pressure sensors, such as capacitive pressure sensors or electromagnetic pressure sensors, to collect the actual pressure of each preset pipe node on the system input pipeline in the heat exchange system.

[0089] Step 302: Determine the pressure output information of the target water pump based on the pressure constraints corresponding to each preset pipeline node.

[0090] For each preset pipeline node, the pressure constraint condition typically refers to the pressure range at that preset pipeline node. The pressure constraint condition for each preset pipeline node can be expressed as:

[0091]

[0092] Among them, H n It is the pressure of the nth node. It is the minimum pressure value of the nth node. It is the maximum pressure value of the nth node, and N is the total number of preset pipeline nodes.

[0093] The target water pump is used to supply water to the heat exchange system.

[0094] Pressure output information is typically used to indicate the output pressure. It usually includes the output pressure value.

[0095] In practice, the aforementioned implementing entity can use the junction of the system input pipeline and each branch pipeline in the heat exchange system as a preset pipeline node. For each branch pipeline, the actual pressure at the start and end points of the branch pipeline is collected to determine the pressure drop of the branch pipeline. Among the pressure drops of each branch pipeline that meet the pressure constraints corresponding to each preset pipeline node, the maximum pressure drop of the branch pipeline of the heat exchange system is determined, and the maximum pressure drop is used as the pressure output information of the target water pump.

[0096] Step 303: Control the output pressure of the target water pump based on the pressure output information.

[0097] Here, after obtaining the pressure output information, the aforementioned executing entity can set the output pressure of the target water pump to the output pressure value in the pressure output information.

[0098] The method for controlling the output pressure of the target water pump provided in this embodiment collects the actual pressure of each preset pipe node on the system input pipe of the heat system, and obtains the maximum pressure drop in the heat exchange system by combining the pressure constraint conditions. The output pressure of the target water pump is controlled according to the maximum pressure drop. While ensuring the water supply demand of each branch pipe in the heat exchange system, the output pressure of the target water pump is adjusted in real time to reduce the power consumption of the target water pump.

[0099] In some optional implementations of this embodiment, the nuclear island cold chain valve opening control method may further include the following first and second steps:

[0100] The first step is to input the desired flow rate into the pre-set flow distribution model to obtain the flow rate of the input pipe of each heat exchanger, which is recorded as the equipment flow rate. Based on the equipment flow rate of each heat exchanger, the equipment temperature of each equipment to be cooled is determined.

[0101] Among them, the flow distribution model can be a model that allocates the expected flow rate to each heat exchanger based on the proportion of the expected heat exchange of each heat exchanger in the total heat exchange of the heat exchange system.

[0102] In practice, the aforementioned implementing entity can set a flow distribution coefficient for each heat exchanger in the flow distribution model based on the proportion of the expected heat exchange capacity of each heat exchanger in the total heat exchange capacity of the heat exchange system. The flow rate allocated to the input pipe of each heat exchanger is the product of the flow distribution coefficient of that heat exchanger and the expected flow rate of the heat exchange system. For example, the total expected flow rate of a heat exchange system including three heat exchangers is q. z The expected heat transfer rates of each heat exchanger are 2, 3, and 5, respectively, and the total expected heat transfer rate of the heat exchange system is 10. Therefore, the flow splitting coefficients for the three heat exchangers are 0.2, 0.3, and 0.5, respectively, and the flow rate of the input pipes for the three heat exchangers is 0.2q. z 0.3q z 0.5qz .

[0103] After obtaining the flow rate of the input pipe of each heat exchanger, the aforementioned execution entity can use this flow rate to look up the corresponding heat exchange rate from a pre-established heat exchange rate-flow rate correspondence table, and use this as the heat absorbed by the heat exchanger. The aforementioned heat exchange rate-flow rate correspondence table can be a pre-established correspondence table created by the execution entity, storing multiple correspondences between heat exchange rates and flow rates. Alternatively, the execution entity can calculate the heat absorbed by the heat exchanger using the following formula:

[0104] Q in =cρq in ΔT

[0105] Among them, Q in ρ is the heat absorbed by the heat exchanger, c is the specific heat capacity of water, ρ is the density of water, and q is the specific heat capacity of water. in ΔT is the flow rate of the heat exchanger's input pipe, and ΔT is the temperature difference between the heat exchanger's input and output ends.

[0106] For each heat exchanger, the constraint of heat conservation must be satisfied, meaning the heat absorbed by the heat exchanger is the same as the heat dissipated by the corresponding equipment to be cooled. After obtaining the flow rate of the inlet pipe of the heat exchanger, the temperature of the equipment to be cooled can be determined by the following formula:

[0107]

[0108] in, It is the equipment temperature of the equipment to be cooled corresponding to the j-th heat exchanger. Q is the initial temperature of the device to be cooled corresponding to the j-th heat exchanger. in It is the heat absorbed by the j-th heat exchanger, c m It is the specific heat capacity of the cooling medium in the equipment to be cooled, ρ m It is the density of the cooling medium in the equipment to be cooled. It is the flow rate at the heat exchange input end or the flow rate at the heat exchange output end of the equipment to be cooled corresponding to the j-th heat exchange device.

[0109] The second step is to input the equipment temperature of each equipment to be cooled into a preset loss function. If the calculation result of the preset loss function meets the preset convergence condition, then for each heat exchanger, the opening information of the pipe valve of the corresponding heat exchanger input pipe is determined according to the equipment flow rate of the corresponding heat exchanger, and the opening of the corresponding pipe valve of the corresponding heat exchanger is controlled according to the determined opening information.

[0110] In practice, the equipment to be cooled usually has an optimal cooling temperature. The loss function of the actual heat exchange and the optimal heat exchange can be preset according to the equipment temperature and the optimal cooling temperature.

[0111] As an example, the aforementioned execution entity can use the square of the difference between the actual heat exchange and the optimal heat exchange as the loss function, and set the convergence condition as the calculated result of the loss function being less than a preset parameter, as shown in the following formula:

[0112] (Q t -Q set ) 2 <ε

[0113] Among them, Q t Q is the actual heat exchange capacity of the heat exchange equipment. set The optimal heat exchange capacity of the heat exchanger is ε, which is a preset parameter, and the actual heat exchange capacity is Q. t It can be calculated using the following formula:

[0114]

[0115]

[0116]

[0117] in, K is the temperature difference between the heat exchange input and output ends of the device to be cooled corresponding to the j-th heat exchanger. j A is the heat transfer coefficient of the equipment to be cooled. j q is the heat exchange area of ​​the equipment to be cooled. h It is the flow rate at the heat exchange input end of the equipment to be cooled, ρ h It is the density of the cooling medium at the heat exchange input end of the equipment to be cooled, c h It is the specific heat capacity of the cooling medium at the heat exchange input end of the equipment to be cooled, q c It is the flow rate at the heat exchanger output end of the equipment to be cooled, ρ c It is the density of the cooling medium at the heat exchange output end of the equipment to be cooled, c c It is the specific heat capacity of the cooling medium at the heat exchange output end of the equipment to be cooled.

[0118] Optimal heat exchange Q set It can be calculated using the following formula:

[0119]

[0120] Among them, c m It is the specific heat capacity of the cooling medium in the equipment to be cooled, ρ m It is the density of the cooling medium in the equipment to be cooled. It is the heat exchange input flow rate or heat exchange output flow rate of the equipment to be cooled corresponding to the j-th heat exchanger. It is the initial temperature of the equipment to be cooled. This is the optimal cooling temperature for the equipment to be cooled.

[0121] The equipment temperature of each heat exchanger is input into a preset loss function, and the value of the preset loss function is calculated. If the calculated result is less than a preset parameter, the allocated flow rate is used as the equipment flow rate for each heat exchanger. The execution entity can use the equipment flow rate of the corresponding heat exchanger to find the opening information corresponding to the equipment flow rate from a pre-established flow rate-opening information correspondence table. Based on the equipment flow rate of the corresponding heat exchanger, the opening information of the pipe valves of the corresponding heat exchanger's input pipe is determined, and the opening information of the corresponding pipe valves of the corresponding heat exchanger is controlled according to the determined opening information. For example, for a heat exchange system including three heat exchangers, the equipment flow rate of each heat exchanger obtained using the flow splitting model is 0.2q. z 0.3q z 0.5q z If the loss function corresponding to the equipment temperature of the equipment to be cooled, determined by the equipment flow rate of the heat exchanger, satisfies the preset convergence condition, then in the preset flow rate-opening information correspondence table, based on the equipment flow rate 0.2q of each heat exchanger... z 0.3q z 0.5q z Find the corresponding valve opening information L1, L2, L3, and set the opening of the pipe valves for each heat exchanger to the corresponding L1, L2, L3.

[0122] If the calculation result of the preset loss function does not meet the preset convergence condition, please refer to [link / reference]. Figure 4 , Figure 4 This application illustrates a flowchart of an embodiment of adjusting the flow rate of a heat exchanger, including:

[0123] Step 401: Adjust the flow rate of each heat exchanger according to the preset adjustment rules, and determine the adjusted temperature of the corresponding equipment to be cooled based on the adjusted flow rate of each heat exchanger.

[0124] Among them, the adjustment rules can be rules used to adjust the flow rate of each heat exchange device in the heat exchange system.

[0125] In practice, the aforementioned implementing entity can adjust the flow rate of each heat exchanger in the heat exchange system by setting an iterative method. For example, the iteration step size can be set to... The flow rate of each heat exchanger is adjusted, among which... This represents the optimal heat exchange capacity of the device to be cooled corresponding to the j-th heat exchanger, where J is the total number of heat exchangers in the heat exchange system. The executing entity can also identify the heat exchanger whose preset loss function calculation result differs most from the preset convergence condition, determine the flow rate required for that heat exchanger to meet the convergence condition, and adjust the required flow rate from the flow rates of other heat exchangers. For example, for equipment flow rates of 0.2q... z 0.3q z 0.5q z The three heat exchange devices, if 0.2q z The calculated result of the corresponding preset loss function differs most from the preset convergence condition. The flow rate required for this heat exchanger to meet the convergence condition is 0.4q. z Then adjust 0.2q from the other two heat exchangers. z The flow rates of the three heat exchangers after adjustment are 0.4q. z 0.2q z 0.4q z .

[0126] After obtaining the adjusted flow rate of each heat exchanger, the method for determining the adjusted temperature of the corresponding heat exchanger is basically the same as the method for determining the temperature of the corresponding heat exchanger in the first step of the previous embodiment, and will not be repeated here.

[0127] Step 402: Input the adjusted equipment temperature of each heat exchanger into the preset loss function. If the calculation result of the preset loss function does not meet the preset convergence condition, continue to execute the adjustment steps.

[0128] Here, the method of inputting the adjusted equipment temperature of each heat exchanger into the preset loss function is basically the same as the corresponding content in the second step of the previous embodiment, and will not be repeated here. If the calculation result of the preset loss function does not meet the preset convergence condition, the adjustment step continues to be executed. In practice, an adjustment parameter can also be set to characterize the number of adjustments. When the adjustment parameter reaches the preset adjustment number threshold, the adjustment step is stopped.

[0129] Step 403: If the calculation result of the preset loss function meets the preset convergence condition, then the adjusted equipment flow rate of each heat exchanger is determined as the equipment flow rate of the corresponding heat exchanger.

[0130] In practice, if the calculation result of the preset loss function meets the preset convergence condition, the adjustment step is stopped, and the adjusted equipment flow rate of each heat exchanger is taken as the equipment flow rate of the corresponding heat exchanger.

[0131] In some optional implementations of this embodiment, if there are multiple heat exchange systems, the expected flow rate of the system input pipe of the heat exchange system is determined based on the expected heat exchange capacity of each heat exchange device. This may include:

[0132] For each heat exchange system, determine the temperature influence coefficient between other heat exchange systems and the corresponding heat exchange system, and determine the expected flow rate of the system input pipeline of the corresponding heat exchange system based on the temperature influence coefficient and the expected heat exchange capacity of each heat exchange device in the corresponding heat exchange system.

[0133] The temperature influence coefficient is a coefficient used to characterize the influence of the temperature of other heat exchange systems on the temperature of the current heat exchange system.

[0134] In practice, for each heat exchange system, the aforementioned executing entity can acquire the output temperature value of the heat exchange system using a temperature acquisition device, such as a temperature sensor. The temperature corresponding to the output temperature value is taken as the system temperature of the heat exchange system. Furthermore, the system temperature is used to look up the temperature influence coefficients between this heat exchange system and other heat exchange systems from a pre-established temperature-temperature influence coefficient correspondence table. This temperature-temperature influence coefficient correspondence table can be a pre-established table by the executing entity that stores multiple correspondences between temperatures and temperature influence coefficients.

[0135] Here, for each heat exchange system, the aforementioned execution entity can also collect the output temperature values ​​of the heat exchange system and other heat exchange systems coupled to the heat exchange system through temperature acquisition devices, such as temperature sensors, and determine the temperature influence coefficient of the heat exchange system through a preset temperature coupling relationship.

[0136] Here, after determining the temperature influence coefficient between other heat exchange systems and the corresponding heat exchange system, the aforementioned implementing entity can adjust the expected heat transfer of each heat exchange system using the temperature influence coefficient. For example, the total expected heat transfer of each system is multiplied by the corresponding temperature influence coefficient, and the adjusted expected heat transfer is used as the heat transfer of that heat exchange system. The expected flow rate of the system input pipe of the corresponding heat exchange system is then obtained by looking up the heat-flow correspondence table. In practice, the aforementioned implementing entity can also directly adjust the expected flow rate of each heat exchange system using the temperature influence coefficient. For example, after obtaining the temperature influence coefficient, the implementing entity uses the expected heat transfer of each heat exchange system, looks up the flow rate of the input pipe of the corresponding heat exchange system from the heat-flow correspondence table, and uses the product of this flow rate and the temperature coefficient as the expected flow rate of the system input pipe of the corresponding heat exchange system.

[0137] Please see Figure 5 , Figure 5 This is a structural block diagram of a heat exchange system device provided in an embodiment of this application, including:

[0138] Information acquisition unit 501 is used to acquire the expected heat exchange capacity of each heat exchange device in the heat exchange system, wherein the heat exchange system includes multiple heat exchange devices;

[0139] The flow rate determination unit 502 is used to determine the expected flow rate of the system input pipe of the heat exchange system based on the expected heat exchange capacity of each heat exchange device.

[0140] The opening control unit 503 is used to determine the opening information of the valves in the system input pipeline based on the expected flow rate of the system input pipeline, and to control the opening of the valves in the system input pipeline based on the opening information of the valves in the system input pipeline.

[0141] As an embodiment of this application, the information acquisition unit 501 acquires the expected heat exchange capacity of each heat exchange device in the heat exchange system, including:

[0142] For each heat exchanger, real-time temperature and flow information of the corresponding heat exchanger to be cooled are collected. Based on the real-time temperature and flow information, the expected heat exchange capacity of the corresponding heat exchanger is determined. The real-time temperature information includes the heat exchange input temperature and heat exchange output temperature of the corresponding heat exchanger to be cooled. The real-time flow information includes the heat exchange input flow rate and heat exchange output flow rate of the corresponding heat exchanger to be cooled.

[0143] As an embodiment of this application, the flow rate determination unit 502 determines the expected flow rate of the system input pipe of the heat exchange system based on the expected heat exchange capacity of each heat exchanger, including:

[0144] The sum of the expected heat transfer values ​​of each heat exchanger is determined as the total expected heat transfer value of the heat exchange system.

[0145] Based on the pre-stored correspondence between heat exchange and flow rate, determine the flow rate corresponding to the total expected heat exchange, and use the determined flow rate as the expected flow rate of the system input pipeline.

[0146] As one embodiment of this application, the device further includes a pressure control unit (not shown in the figure). The pressure control unit is used for:

[0147] Collect the actual pressure of each preset pipe node on the system input pipeline in the heat exchange system;

[0148] Based on the pressure constraints corresponding to each preset pipeline node, the pressure output information of the target water pump is determined, wherein the target water pump is used to supply water to the heat exchange system.

[0149] Based on the pressure output information, control the output pressure of the target water pump.

[0150] As an embodiment of this application, the apparatus further includes a flow distribution unit (not shown in the figure). The flow distribution unit is used for:

[0151] The desired flow rate is input into a pre-set flow distribution model to obtain the flow rate of the equipment input pipe of each heat exchanger, which is recorded as the equipment flow rate. Based on the equipment flow rate of each heat exchanger, the equipment temperature of each equipment to be cooled is determined.

[0152] The equipment temperature of each device to be cooled is input into a preset loss function. If the calculation result of the preset loss function meets the preset convergence condition, then for each heat exchanger, the opening information of the pipe valve of the corresponding heat exchanger input pipe is determined according to the equipment flow rate of the corresponding heat exchanger, and the opening of the corresponding pipe valve of the corresponding heat exchanger is controlled according to the determined opening information.

[0153] As an embodiment of this application, the device further includes a flow adjustment unit (not shown in the figure). The flow adjustment unit is used for:

[0154] If the calculation result of the preset loss function does not meet the preset convergence condition, the following adjustment steps will be performed:

[0155] According to the preset adjustment rules, the flow rate of each heat exchanger is adjusted, and the adjusted temperature of the corresponding equipment to be cooled is determined based on the adjusted flow rate of each heat exchanger.

[0156] Input the adjusted equipment temperature of each heat exchanger into the preset loss function. If the calculation result of the preset loss function does not meet the preset convergence condition, continue to execute the adjustment steps.

[0157] If the calculation result of the preset loss function meets the preset convergence condition, then the adjusted equipment flow rate of each heat exchanger is determined as the equipment flow rate of the corresponding heat exchanger.

[0158] As an embodiment of this application, if there are multiple heat exchange systems, the flow rate determination unit 502 determines the expected flow rate of the system input pipe of the heat exchange system based on the expected heat exchange capacity of each heat exchange device, including:

[0159] For each heat exchange system, determine the temperature influence coefficient between other heat exchange systems and the corresponding heat exchange system, and determine the expected flow rate of the system input pipeline of the corresponding heat exchange system based on the temperature influence coefficient and the expected heat exchange capacity of each heat exchange device in the corresponding heat exchange system.

[0160] The apparatus provided in this embodiment first collects heat information of the heat exchange equipment through a detection device to obtain the expected heat exchange capacity of the heat exchange equipment. Then, based on the correspondence between heat and flow rate, the expected flow rate of the system input pipe in the heat exchange system is determined. For each valve, different opening degrees correspond to different flow rates. Based on the correspondence between flow rate and opening degree, the valve opening information corresponding to the expected flow rate is obtained. Finally, based on the opening degree information, the opening degree of the pipe valves in the system input pipe is controlled to regulate the flow rate in the pipe, making reasonable use of the cold source in the heat exchange system and improving the economic efficiency of the nuclear power plant.

[0161] It should be understood that, Figure 5 In the structural block diagram of the heat exchange system shown, each unit is used to perform... Figure 1 , Figure 3 , Figure 4 The steps in the corresponding embodiments, and for Figure 1 , Figure 3 , Figure 4 The steps in the corresponding embodiments have been explained in detail in the above embodiments. Please refer to them for details. Figure 1 , Figure 3 , Figure 4 as well as Figure 1 , Figure 3 , Figure 4 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0162] Please see Figure 6 , Figure 6 This is a structural block diagram of a server provided in one embodiment of this application. The server 600 in this embodiment includes a processor 601, a memory 602, and a computer program 603 stored in the memory 602 and executable on the processor 601, such as a valve opening control program. When the processor 601 executes the computer program 603, it implements the steps in the various embodiments of the valve opening control system described above, for example... Figure 1 Steps 101 to 103 shown are as follows: Figure 3 Steps 301 to 303 shown, or Figure 4 As shown in 401 to 403. Alternatively, the processor 601 implements the above when executing computer program 603. Figure 5 The functions of each unit in the corresponding embodiments, for example, Figure 5 For details on the functions of units 501 to 503 shown, please refer to [link / reference needed]. Figure 5 The relevant descriptions in the corresponding embodiments are not repeated here.

[0163] For example, computer program 603 can be divided into one or more units, one or more of which are stored in memory 602 and executed by processor 601 to complete this application. The one or more units can be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of computer program 603 in server 600. For example, computer program 603 can be divided into an information acquisition unit, a flow determination unit, and an opening control unit, with the specific functions of each unit as described above.

[0164] The server may include, but is not limited to, processor 601 and memory 602. Those skilled in the art will understand that... Figure 5 This is merely an example of server 600 and does not constitute a limitation on server 600. It may include more or fewer components than shown, or combine certain components, or different components. For example, the turntable device may also include input / output devices, network access devices, buses, etc.

[0165] The processor 601 may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0166] The memory 602 can be an internal storage unit of the server 600, such as the server 600's hard drive or memory. The memory 602 can also be an external storage device of the server 600, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card equipped on the server 600. Furthermore, the memory 602 can include both internal and external storage units of the server 600. The memory 602 is used to store computer programs and other programs and data required by the turntable device. The memory 602 can also be used to temporarily store data that has been output or will be output.

[0167] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0168] If an integrated module is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can also be implemented by a computer program instructing related hardware, and a computer program can be stored in a computer-readable storage medium. When executed by a processor, this computer program can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0169] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0170] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A nuclear island cold chain valve opening degree control method, characterized by, The method comprises the following steps: acquiring expected heat exchange amounts of heat exchange devices in a heat exchange system, wherein the heat exchange system comprises a plurality of heat exchange devices; determining an expected flow of a system input pipeline of the heat exchange system according to the expected heat exchange amounts of the heat exchange devices; determining opening degree information of a pipeline valve of the system input pipeline according to the expected flow of the system input pipeline, and controlling the opening degree of the pipeline valve of the system input pipeline according to the opening degree information of the pipeline valve of the system input pipeline. The acquiring of the expected heat exchange amounts of the heat exchange devices in the heat exchange system comprises the following steps: for each heat exchange device, collecting real-time temperature information and real-time flow information of a corresponding to-be-cooled device of the heat exchange device, and determining an expected heat exchange amount of the heat exchange device according to the real-time temperature information and the real-time flow information, wherein the real-time temperature information comprises a heat exchange input end temperature and a heat exchange output end temperature of the corresponding to-be-cooled device of the heat exchange device, and the real-time flow information comprises a heat exchange input end flow and a heat exchange output end flow of the corresponding to-be-cooled device of the heat exchange device; obtaining a temperature difference between the heat exchange input end and the heat exchange output end of the to-be-cooled device by subtracting the heat exchange output end temperature from the heat exchange input end temperature of the to-be-cooled device, and determining the expected heat exchange amount of the corresponding to-be-cooled device by calculation according to the following formula: in, It is the first j The expected heat exchange capacity of the equipment to be cooled corresponding to each heat exchanger. It is the specific heat capacity of the cooling medium in the equipment to be cooled. It is the density of the cooling medium in the equipment to be cooled. It is the first j The heat exchange input flow rate or heat exchange output flow rate of the equipment to be cooled corresponding to each heat exchanger. It is the first j The temperature difference between the heat exchange input end and the heat exchange output end of the equipment to be cooled corresponding to each heat exchange device; The determining of the expected flow of the system input pipeline of the heat exchange system according to the expected heat exchange amounts of the heat exchange devices comprises the following steps: determining a sum of the expected heat exchange amounts of the heat exchange devices as a total expected heat exchange amount corresponding to the heat exchange system; determining a flow corresponding to the total expected heat exchange amount according to a pre-stored corresponding relationship between heat exchange amounts and flows, and taking the determined flow as the expected flow of the system input pipeline.

2. The nuclear island cold leg valve opening control method of claim 1, wherein, The method further comprises the following steps: collecting actual pressures of each preset pipeline node on the system input pipeline in the heat exchange system; determining pressure output information of a target water pump according to pressure constraint conditions respectively corresponding to each preset pipeline node, wherein the target water pump is used for supplying water to the heat exchange system; controlling an output pressure of the target water pump according to the pressure output information.

3. The nuclear island cold leg valve opening control method of claim 1, wherein, The method further comprises the following steps: inputting the expected flow into a pre-set split model to obtain a flow of a device input pipeline of each heat exchange device, denoted as a device flow, and determining a device temperature of each to-be-cooled device according to the device flow of each heat exchange device; inputting the device temperature of each to-be-cooled device into a pre-set loss function, and if a calculation result of the pre-set loss function satisfies a pre-set convergence condition, then for each heat exchange device, determining opening degree information of a pipeline valve of a device input pipeline of the corresponding heat exchange device according to the device flow of the corresponding heat exchange device, and controlling the opening degree of the pipeline valve corresponding to the corresponding heat exchange device according to the determined opening degree information.

4. The nuclear island cold leg valve opening control method of claim 3, wherein, The method further comprises the following steps: if the calculation result of the pre-set loss function does not satisfy the pre-set convergence condition, then the following adjustment steps are performed: adjusting the device flow of each heat exchange device according to a pre-set adjustment rule, and determining an adjusted device temperature of the corresponding to-be-cooled device according to the adjusted device flow of each heat exchange device. input the adjusted equipment temperature of each equipment to be cooled into the preset loss function, and if the calculation result of the preset loss function does not satisfy the preset convergence condition, continue to perform the adjusting step; if the calculation result of the preset loss function satisfies the preset convergence condition, determine the adjusted equipment flow of each heat exchange equipment as the equipment flow of the corresponding heat exchange equipment.

5. The nuclear island cold leg valve opening control method according to any one of claims 1-4, characterized in that, If the heat exchange system has multiple heat exchange systems, the expected flow of the system input pipeline of the heat exchange system is determined according to the expected heat exchange amount of each heat exchange equipment, comprising: For each heat exchange system, determine the temperature influence coefficient between other heat exchange systems and the corresponding heat exchange system, and determine the expected flow of the system input pipeline of the corresponding heat exchange system according to the temperature influence coefficient and the expected heat exchange amount of each heat exchange equipment in the corresponding heat exchange system.

6. A device for valve opening degree control for implementing the method of valve opening degree control of the cold chain of the nuclear island according to any one of claims 1 to 5, characterized in that, Comprising: an information acquisition unit configured to acquire an expected heat exchange amount of each heat exchange equipment in a heat exchange system, wherein the heat exchange system comprises a plurality of heat exchange equipment; a flow determination unit configured to determine an expected flow of a system input pipeline of the heat exchange system according to the expected heat exchange amount of each heat exchange equipment; an opening control unit configured to determine opening information of a pipeline valve of the system input pipeline according to the expected flow of the system input pipeline, and control the opening of the pipeline valve of the system input pipeline according to the opening information of the pipeline valve of the system input pipeline.

7. A server comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor executes the computer program to realize the nuclear island cold chain valve opening control method of any one of claims 1 to 5.

8. A computer-readable storage medium storing a computer program, the computer program comprising instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 7. The computer program is executed by the processor to realize the nuclear island cold chain valve opening control method of any one of claims 1 to 5.

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